As the war rages on between the pros and cons of physical vs. digital game distribution, no clear winner has yet emerged. There's a good reason for that -- used games. With the control and ability to charge for every little aspect, game publishers are looking at DRM and the digital revolution to revitalize there sagging sales and "stop piracy". Not to mention, since people already trade used games via file-sharing, any legal variant is essentially hopeless. And of course, greed clouds their ...